Parallel connected LED lights -last one is dimmer, why?

I have 3 Lutron LED recessed lights (9W) with individual driver each(came with the lights) connected in parallel and wired to a Lutron dimmable compatible switch.

For some reason when switch is set to full dimm mode and turned on, the last LED is not coming on. When it's set to anything a bit brighter than full dimm it comes on but slightly dimmer. The first 2 lights are working great.

When I start on full power and then go all the way down to full dimm the third light stays on but also slightly dimmer.